EP 2873254 A1 20150520 - LOUDSPEAKER POSITION COMPENSATION WITH 3D-AUDIO HIERARCHICAL CODING
Title (en)
LOUDSPEAKER POSITION COMPENSATION WITH 3D-AUDIO HIERARCHICAL CODING
Title (de)
LAUTSPRECHERPOSITIONSAUSGLEICH MIT HIERARCHISCHER 3D-AUDIO-CODIERUNG
Title (fr)
COMPENSATION DE POSITION DE HAUT-PARLEUR À CODAGE AUDIO 3D HIÉRARCHIQUE
Publication
Application
Priority
- US 201261672280 P 20120716
- US 201361754416 P 20130118
- US 201313942657 A 20130715
- US 2013050648 W 20130716
Abstract (en)
[origin: US2014016802A1] In general, techniques are described for compensating for loudspeaker positions using hierarchical three-dimensional (3D) audio coding. An apparatus comprising or more processors may perform the techniques. The processors may be configured to perform a first transform that is based on a spherical wave model on a first set of audio channel information for a first geometry of speakers to generate a first hierarchical set of elements that describes a sound field. The processors may further be configured to perform a second transform in a frequency domain on the first hierarchical set of elements to generate a second set of audio channel information for a second geometry of speakers.
IPC 8 full level
CPC (source: EP KR US)
H04S 3/002 (2013.01 - EP KR US); H04S 3/006 (2013.01 - KR US); H04S 7/30 (2013.01 - EP US); H04S 2400/03 (2013.01 - EP KR US); H04S 2420/11 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2014014891A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2014016802 A1 20140116; US 9473870 B2 20161018; BR 112015001001 A2 20170627; CN 104429102 A 20150318; CN 104429102 B 20171215; EP 2873254 A1 20150520; EP 2873254 B1 20171129; IN 2630MUN2014 A 20151016; JP 2015527821 A 20150917; JP 6092387 B2 20170308; KR 101759005 B1 20170717; KR 20150038048 A 20150408; WO 2014014891 A1 20140123
DOCDB simple family (application)
US 201313942657 A 20130715; BR 112015001001 A 20130716; CN 201380037326 A 20130716; EP 13739924 A 20130716; IN 2630MUN2014 A 20141226; JP 2015523177 A 20130716; KR 20157003636 A 20130716; US 2013050648 W 20130716